A gem of a teacher. Smart, funny, and doesn't baby you. Probably one of the smartest teachers at the school, so if you are a smart person this is the man you want to learn from. Every class is genuinely interesting. Also, let it be known I was reprimanded time and time again by him (i sometimes acted like an idiot), but i would still say this guy is one of the best teachers out there.
he definitely got on my nerves sometimes but overall he's a really good teacher. he can be really funny too. i enjoyed having him this past year.
Cool guy, never really had him as a prof but he was my class' advisor and did a lot of work with us.
Good teacher, especially if you like chemistry already. Otherwise, you might have some trouble, but mostly its all good.
choi is a great great guy, he takes the time to help you out if your lost in the hard subject matter. Plus he's a cool guy outside of class.
awsome man never blown so many things up in school before
Choi chem was fun, haha AP Environmental is gonna be fun
Choi is great. Really good teacher, really cool,and really smart.
Mr.Choi is one of the coolest teacher in the school, word up coach.
Good teacher, hard to understand because of lisp. Can be vulgar.